Instruction Manual

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Page102
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GNAV540UserManual
7430‐0808‐01Rev.B
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hardwarePowerBITField Bit Values Category
threeVolt 4 0=normal,1=outofbounds Soft
twoVolt 5 0=normal,1=outofbounds Soft
twoFiveRef 6 0=normal,1=outofbounds Soft
sixVolt 7 0=normal,1=outofbounds Soft
grdRef 8 0=normal,1=outofbounds Soft
fourVolt 9 0=normal,1=outofbounds Soft
Reserved 10:15 N/A N/A
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hardwareEnvironmentalBITField
ThehardwareEnvironmentalBITfieldcontainsflagsthatindicatelowlevelhardwareenvironmentalerrors.The
environmentalErrorflaginthehardwareBITfieldisthebit‐wiseORofthehardwareEnvironmentalBITfield.
Table81hardwareEnvironmentalBITField
hardwareEnvironmentalBITField Bits Values Category
pcbTemp 0 0=normal,1=outofbounds Soft
Reserved 9:15 N/A 
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comBITField
ThecomBITfieldcontainsflagsthatindicatecommunicationerrorswithexternaldevices.Eachexternaldevicehas
anassociatedmessagewithlowlevelerrorsignals.ThecomErrorflagintheBITstatusfieldisthebit‐wiseORofthe
comBITfield.
Table82comBITField
comBITField Bits Values Category
serialAError 0 0=normal,1=error Soft
serialBError 1 0=normal,1=error Soft
serialCError 2 0=normal,1=error 
Reserved 3:15 N/A 
comBIT‐Fieldstickyness:
• WitheacherrororoverflowtherelatedcomSerialBit‐fieldflag(s)willremainstickyuntilreportedina
packet.ThealgorithmtaskisresponsibleforclearingtheBITflag(voidhandleComBIT()).
• Requestingapacketdoesnotcleartheflag(s).Onlywhentheunitisconfiguredtocontinuouslyoutputa
packetwilltheflag(s)becleared
• Whenasubstantialnumberofconsecutiveerrorshaveoccurredinashortperiodoftimethemasterfailbit
issetandtheflagscannotbeclearedwithoutdoingareset.